Tree with flattish crown, up to 25 m high, stem 80(-125) cm in diameter. Branchlets terete, coarsely lenticellate by reddish, round lenticels, sparsely puberulous, glabrescent. Stipules triangular, caducous, less than 0.5 mm. Leaves sparsely puberulous, glabrescent; petiole 0.9-3.7 cm, with a gland at the junction of the pinnae, rhombic to ob-u iangular, sessile, flat to slighdy sunken, to 3 mm; pinnae one pair, unequal, 5.5-11.5 cm, with glands at the junction of the petiolules, obtriangular to elliptic, sunken but with slighdy raised margins, 1-1.5 mm; petiolules c. 3-4 mm; leaflets 2-3(-4) pairs per pinna, opposite, chartaceous, unequal-sided, asymmetrically (broadly) ovate or ovate-elliptic, 4-17 by 1.8-8.9 cm, base asymmetrical, half rounded/half cuneate, cuneate, or rounded, apex acuminate, main vein central or subcentral. Inflorescences composed of densely puberulous pedunculate glomerules, these clustered on branch-lets c. 1-2 cm long, leafless or occasionally with developing leaves; peduncles 2-4 cm, with a terminal glomerule consisting of c. 15 flowers, pedicel 1-1.5 mm. Flowers pentamerous, bisexual, dimorphic. Calyx green, subtubular, sometimes unilaterally split, 2-4 mm, short-tomentose; teeth triangular, acute, 0.2 mm. Corolla whitish, funnel-shaped, 6-7 mm, tube glabrous or with a few scattered hairs only; lobes greenish, ovate-elliptic to elliptic-oblong, acute 1.5-2.5 mm, short-tomentose or puberulous. Stamens whitish, c. 20 mm, tube equalling the corolla-tube. Ovary sessile, c. 2 mm, glabrous. Pod red-brown to blackish, oblong, straight, flattened, ± rigidly coriaceous, with the seeds in separate segments, 17-33 by 2.8-4.7 by 1 cm, thick, indehiscent, glabrous, valves bullate over the seeds, with pro-minulous to inconspicuous veins, segments 2.3-3.9 cm. Seeds blackish, suborbicular, ellipsoid, or ovoid-ellipsoid, c. 21-22 by 12.5-14 by 16-19 mm, sometimes irregularly shaped; areole horseshoe-shaped, c. 2-3.5 mm wide, pleurogram closed, not continuous between the faces of the seeds, reaching nearly the top of the seed.
Can be grown by seedlings. Seeds needs soaking.